Fuel Sending Unit - 1936 Roadster

[mgm60]

Replacing the leaky gasket on my fuel sending unit which by the way was homemade out roofing paper, and discovered another issue. Looks like the float arm was repaired at some point or maybe modified to work with this tank. Its' about 6 3/4" from where the arm attaches to float and where it bends to attach to the sending unit. Does this look right for a Roadster fuel tank? The fuel gauge is also not reading correctly. Only shows about 3/4 full when full.